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| Auteur principal: | |
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| Format: | Recurso educativo Open Access |
| Langue: | en |
| Publié: |
1992
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| Sujets: | |
| Accès en ligne: | https://eric.ed.gov/?id=EJ451949 |
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Table des matières:
- Enhancing Subject Access to OPACs: Controlled Vocabulary vs. Natural Language. Cousins, Shirley Anne Comparative Analysis Dewey Decimal Classification Indexing Information Retrieval Online Catalogs Research Projects Subject Index Terms Investigation of retrieval performance of controlled vocabulary derived from natural language terms in tables of contents and book indexes assumed that controlled vocabulary representative of users' queries should adequately represent documents' contents. Queries were indexed using Library of Congress Subject Headings (LSCH), Dewey Decimal Classification (DC), and PRECIS. PRECIS showed the best performance. (32 references) (EA)